425944008 has 192 divisors, whose sum is σ = 1384306560. Its totient is φ = 120185856.

The previous prime is 425944007. The next prime is 425944019. The reversal of 425944008 is 800449524.

It is a super-2 number, since 2×425944008² = 362856595902208128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (425944003) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1537566 + ... + 1537842.

It is an arithmetic number, because the mean of its divisors is an integer number (7209930).

Almost surely, 2^425944008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425944008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (692153280).

425944008 is an abundant number, since it is smaller than the sum of its proper divisors (958362552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425944008 is a wasteful number, since it uses less digits than its factorization.

425944008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418 (or 402 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 425944008 is about 20638.4109853448. The cubic root of 425944008 is about 752.4035530154.

The spelling of 425944008 in words is "four hundred twenty-five million, nine hundred forty-four thousand, eight".